Modeling the nanohertz gravitational wave background with the t-process: Improved frequentist analysis of gravitational-wave power
Pulsar timing array (PTA) collaborations have recently reported evidence for a gravitational wave background (GWB) signal in the nanohertz band, which most likely originates from the incoherent superposition of GWs emitted by a population of supermassive black hole binaries (SMBHBs). Since the number of binaries emitti...